基于熵权法的快递企业物流服务质量评价

物流服务质量是快递企业占领物流市场、提升竞争力的关键因素,是快递企业获得利润的源泉。为了使快递企业服务质量达到最优化,本文在对快递企业物流服务现状进行分析的基础上,结合快递企业物流服务质量问卷调查,总结出国内快递企业存在着丢失、损坏、延误、无法提供个性化服务等物流服务质量问题。针对上述问题,利用改进的SERVQUAL模型,并运用熵权法对物流服务质量进行了评价。结果表明,只有不断地提高快递企业的服务质量,增加顾客满意度,才能促进快递企业的长远发展。     

网购供应链中的竞争和协调若干问题

针对目前急剧增长的网购经济和网络快递现状,提出网购供应链的概念,描述其结构并分析特点.为研究网购供应链中网商和快递服务商的竞争和协调等问题建立分析框架,提出若干值得研究的科学问题.揭示这些问题具有重要的科学研究价值和实践指导意义,可为促进网购经济、政府对网购快递行业进行规制提供理论依据.     

网络自助购物过程中快递服务失败与补救研究

网络购物的普及和兴起,极大促进了我国快递服务企业迅速成长.然而,快递服务企业的成长,也伴随着服务投诉数量的持续增加.如何提高快递服务质量,成为快递服务企业面临的重要问题.本文采取关键事件技术,通过对601个网络自助购物过程中快递服务失败与补救关键事件的分析,探明了服务失败和补救的类别及其发生频率,以及各类服务失败的严重程度和各类服务补救的满意程度.研究表明,服务系统不完善、快递服务人员素质不高、快递服务不能满足顾客需求和面对服务失败缺乏积极补救措施是我国快递服务企业基本现状.因此,在完善快递服务系统基础上,提高快递服务人员素质,按照顾客需求构建快递服务运营系统,为各类服务失败提供顾客期待的积极补救措施,成为我国快递服务企业提高服务质量的必由之路.     

基于消费者评论挖掘的B2C网购物流服务因素类型及其作用机制研究

随着电子商务的迅猛发展以及消费模式的转变,越来越多的消费者开始选择网络购物,物流服务成为影响消费者网购满意度和制约电商企业发展的重要因素之一,因此探索影响网购物流服务的因素及其作用,并依此设计相应的物流优化方案,进而为顾客提供优质服务,提高物流顾客满意度,为企业树立良好形象,提高企业的效益。为探究消费者网购物流服务因素类型及其作用机制,从网购消费者的角度出发,以网络购物者在平台上的评价信息为研究对象,利用八爪鱼数据采集工具从天猫商城抓取一定量的评论信息,使用扎根理论研究方法对其进行分析和挖掘,通过开放式编码、主轴式编码和选择式编码提取物流服务因素主范畴和类型。把影响网购物流服务的因素分为7个主范畴,挖掘主范畴关系结构,将影响网购物流服务质量的因素归纳为配送质量、感知体验、售后服务质量和可靠性等4个主要类型。基于主范畴的典型关系结构,最终确定了"网购物流服务满意度关键影响因素"为核心范畴,分析得出物流服务质量的作用模型。运用语义网络分析和理论饱和度检验对物流服务质量因素的类型及其作用机制进行验证,语义网络分析使用ROST Content Mining知识处理与内容挖掘软件进行全网分析,通过词频分析及关键词共现分析验证所得结果;理论饱和度检验采用原始资料法与信度评估法进一步验证研究结果。结果表明:感知体验是网购物流服务的直接驱动因素,它决定了顾客是否进行网购行为;售后服务质量和可靠性通过影响感知体验间接驱动消费者的网购行为,是网购物流服务的间接因素;配送质量既可以直接影响网购物流服务质量,又可以通过感知体验间接影响网购物流服务质量。通过上述几方面改善物流服务,不仅可以提高顾客满意度,获取和保持稳定的客户群以维持企业的竞争优势,而且可以作为电商企业完善自身物流系统的重要依据,探索自身物流的薄弱环节,使企业得到更好发展。该研究方法及所得结果对B2C电子商务企业改善物流服务质量、提高企业竞争力具有重要意义。     

我国生鲜食品快递现状与对策研究

我国快递企业作为物流行业的重要组成部分,服务生产、服务民生的基础性作用日益显现,电子商务与网购平台催生了生鲜食品快递业务的红火,为快递企业提供了新的机会和挑战。本文分析了我国生鲜食品快递的特点,提出存在的问题和对策。     

面向快递业服务质量评估的组合评价方法研究

针对快递业发展现状以及在服务质量方面存在的问题,通过市场调研和数据分析,采用科学的分析方法,构建快递业服务质量评价指标体系。在该体系上应用层次分析法、民意调查法、专家定见法等获取各项的指标权重,对查询的快递企业用模糊综合评价法进行服务质量的分析评价,以获取快递型企业的服务满意度,以此提升整体服务绩效。     

智能快递柜在校园内的使用与优化

随着电子商务的发展,大学生网络购物非常频繁。然而快递业末端存在问题严重,智能快递柜应运而生。文章对高校快递业现状和智能快递柜进行了详细的介绍,并对智能快递柜存在的问题进行分析和总结。电子商务的兴起带动了快递业的蓬勃发展,大学生网购已经成为他们重要的生活方式。一些快递公司纷纷进驻大学校园,成立快递业务代理点,服务于高校师生的校园快递业务应运而生。目前国内有2800多所大中专院校,每所院校每天上千件的包裹,这些包裹由若干家快递公司进行派送,随着校园快递点的增多,综合管理、服务质量、安全隐私等方面的问题逐渐暴露出来。     

基于AHP的电子商务企业快递服务商决策分析

采用层次分析法，找到了影响电子商务企业选择快递服务商最重要的因素，这些因素包括延误晚点、服务态度、物件丢失和损坏、代收货款和价格.在民营快递企业中，“直营”模式优于“加盟”模式. 通过对比三家快递企业发现，EMS 的价格高、服务质量低.     

当你遭遇网购陷阱

正如今网购盛行,大家在体验网购的便捷、实惠的同时,却也时不时遭遇网购陷阱,例如网店出售的"山寨货"、钓鱼网站、虚假打折、快递诈骗等,我们要如何应对呢"今天你网购了吗?"品味着身边问候语的演化,感叹着现今网络时代发展的蓬勃与迅捷,互联网正迅速将触角伸向现实生活中的诸多领域。作为直接改变人们生活方式的网络购物也呈燎原之势迅速成长着。除     

电子商务的第三方物流服务满意度影响因素

通过对网购用户配送服务满意度测评体系进行研究,不仅可以让物流配送企业不断提高服务质量,在激烈的竞争中得以发展壮大,还可以让电子商务企业选择更好的物流配送模式以改善物流配送环节,提高顾客满意度。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to